msm: clock: Add new reset_clk type

Add a new clock type reset_clk for clk_reset.
This reset_clk actually is a clock reset logic
without parent or dependents.

Change-Id: I76f6517fa4409623a0b549998a465b9a21834c9e
Signed-off-by: Xiaogang Cui <xiaogang@codeaurora.org>